package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/*
    分类管理
 */
@Slf4j
@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;


    /**
     * 新增分类
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
      /*  //TODO 创建条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper();
        //获取菜单名字
        String name = category.getName();
        //设置比较条件
        queryWrapper.eq(Category::getName,name);
        //进行数据库比较并接收比较结果
        Category one = categoryService.getOne(queryWrapper);

        //判断菜名是否存在
        if (one == null){
            //设置逻辑存在
            categoryService.removeById(category);
            return R.success("新增分类成功");
        }*/

        //如果菜名不存在则添加该菜
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     * @param page  当前页数
     * @param pageSize  单页查询条数
     * @return      查询结果
     */
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize){
        //创建分页构造器
        Page<Category> pageInfo = new Page<>(page,pageSize);
        //创建条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //设置排序条件，根据sort进行排序
        queryWrapper.orderByAsc(Category::getSort);

        //进行分页查询
        categoryService.page(pageInfo,queryWrapper);

        //返回查询值
        return R.success(pageInfo);
    }

    /**
     * 根据id删除
     */
    @DeleteMapping
    public R<String> delete(Long id){
        log.info("删除分类，id为：{}",id);

        categoryService.remove(id);
//        categoryService.removeById(id);
        return  R.success("分类信息删除成功");
    }


    /**
     * 根据id修改分类信息
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category){
        log.info("修改分类信息：{}",category);

        categoryService.updateById(category);
        return R.success("修改分类信息成功");
    }

    /**
     * 根据条件查询分类
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //创建条件查询器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加条件
        lqw.eq(category.getType() != null , Category::getType,category.getType());
        //添加排序条件，先按sort进行排序，再按修改时间进行排序
        lqw.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);

        //进行查询
        List<Category> list = categoryService.list(lqw);
        return R.success(list);
    }

}
